Seiko Cal. 5231 - 809

Released in 1967, the Cal. 5231 with design code 809 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-d6ea64ca4d4a]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1967

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